Suffering with nasobronchial allergy, tired of continuous sneezes with water, no relief with medicines. What should be done?

hello sir, iam suffering from naso braonchial allergy , iam very fedup wi my continuous sneezes. from morning to evening continuos sneezing comes & water also comes . doctor has given me many medicines such as nasal drop flomist,montek, heterazin. my AEC is 650. from all these medicines i haven got any relieve. now what i do? frm, bhawana